136347984 has 30 divisors (see below), whose sum is σ = 381585386. Its totient is φ = 45449280.

The previous prime is 136347983. The next prime is 136348027. The reversal of 136347984 is 489743631.

136347984 is a `hidden beast` number, since 1 + 3 + 634 + 7 + 9 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118200384 + 18147600 = 10872^2 + 4260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136347983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 473287 + ... + 473574.

Almost surely, 2^136347984 is an apocalyptic number.

It is an amenable number.

136347984 is an abundant number, since it is smaller than the sum of its proper divisors (245237402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136347984 is a wasteful number, since it uses less digits than its factorization.

136347984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946875 (or 946866 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 136347984 is about 11676.8139490188. The cubic root of 136347984 is about 514.6945547931.

The spelling of 136347984 in words is "one hundred thirty-six million, three hundred forty-seven thousand, nine hundred eighty-four".